In pictures: Attack on Westminster Bridge, British Parliament

An attack in central London has left at least five dead, including the attacker and a police officer, as a car was driven into pedestrians on Westminster Bridge and rammed into fences outside the UK parliament.

Compilation image Source: AAP, Getty

Tourists and lawmakers were thrown into panic on Wednesday in Westminster, London, as an attacker drove into pedestrians and rammed a fence near the UK parliament.

Images from the scene show an MP attending to a victim, heavily armed police flooding the scene and workers evacuating the area.

Malcolm Turnbull responds to attack: